1. 1) T. Altan: Stamping Journal, December (2006) 40–41.
2. 2) R. H. Wagoner: Report for Advanced High Strength Steel work shop, (Arlington, Virginia, USA, October, 2006).
3. 4) M. Merklein and J. Lechler: J. Mater. Proc. Tech. 177 (2006) 452–455.
4. 5) D. Rosental: Weld. J. 20 (1941) 220s–234s.
5. 6) M. I. Khan: Doctral Thesis, (University of Waterloo, Ontario, Canada, 2007) p. 66.